bnorm_node()

SRDef syten::BTT::State::bnorm_node	(	Ptr	ptr,
		Truncation	trunc = Truncation(),
		State::DropNorm const	dropN = DropNorm::Yes,
		State::DropUnmatched const	dropU = DropUnmatched::Yes
	)

B-normalises the node pointed to by ptr, i.e. it gives an identity when contracted with the "B"-legs left open.

References aIdx, aInt, syten::Tensor< rank >::b(), bIdx, bInt, drop_all(), drop_unmatched_b(), std::isnan(), maybeCache(), syten::BTT::norm(), syten::Truncation::notTruncating(), pIdx, pInt, pleaseCache, syten::QR::qr(), rIdx, rInt, syten::Truncation::scale(), syten::singValSqdToError(), syten::SVD::svd(), SYTEN_ASSERT_DEBUG, and uncache().

Referenced by truncate_rec().

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